#include <algorithm>
#include <iostream>

// int main(int agrc, char* argv[])
int main(int agrc, char** agrv)
{
    int c = 100;
    int ret = 0;
    ret = [c](int a, int b){return a+b+c;}(20, 60);
    std::cout << "ret== " << ret << std::endl;
    return 0;
}


